Tagging in Blender

[Cosmack]

Hey everyone,

What would be the easiest way to tag a mesh in blender and have it carry through the exporter to the babylon scene?

Thanks for reading.

[Wingnut]

Hi @Cosmack, welcome to the BabylonJS forum.  Sorry for the slow replies.

Have you done some testing?

We have a tags system, as you likely know.  But a search in Blender docs for "tags"... returns nothing.

Can you give us more info?

https://github.com/BabylonJS/Babylon.js/tree/master/Exporters/Blender

No mention of tags or custom properties in there.

Here is a seriously detailed document about the fancy Tower of Babel exporter for Blender.

https://github.com/BabylonJS/Extensions/tree/master/QueuedInterpolation/Blender

SOME talk of custom properties, but nothing obviously pertinent.

Also, back at the Blender Quickstart page... In the category "The Blender/Python API can’t (yet)"...

Assign custom properties to every type.

Currently, it seems custom properties are most often used on Blender data objects.

https://www.blender.org/api/blender_python_api_current/info_quickstart.html#custom-properties

Again, sorry for the slow (and possibly disappointing) reply.  Perhaps others have more/better info.

[JCPalmer]

There is a Place on the Data properties of Meshes, cameras, armatures, & lights for users to add their custom properties, which are saved in the Blend file.  Tags are likely processed if found in a .BABYLON file though I have not checked.  Nor do I know how to identify custom properties in Python other than the ones defined by the addon.  Those ones I already know the name of.

The ID field of meshes is not really used in Blender exports.  You could edit a .babylon file, and place any value you wish, but you will need to redo this every export.

I would just give your meshes unique names.  Make a named array / dictionary in Java script somewhere.  Put values in the dictionary for each mesh.